1-Way vs 1.5-Way Rear Differentials
Oct 11, 2018, 11:25 PM
#49
EvoM Guru
iTrader: (1)
I seem to recall telling you the weir plates sucks. That sucks they wore out that fast though.
Oct 12, 2018, 06:39 AM
#51
FWIW, i spoke with professional awesome, they are still rocking their 1-way diff. No issues on stability, and they have essentially agreed with my thought process on the setup here. obviously, their car is hugely different from mine, much more power, aero, etc. while mine is pretty much stock + bolt on minor power & suspension.
i'm planning on:
1.1-way OSG, more aggressive ramp angles for harder lockup on acceleration.
The reason i'm still liking the 0.1-way on the decel side is because I'm still going to autocross the car, and feel there could be conditions where it's useful, possibly in slaloms and other quick transitions. I did read that the OSG is very mild on top of that, due to the negative preload springs, so this is going to feel open for the most part anyway
i'm planning on:
1.1-way OSG, more aggressive ramp angles for harder lockup on acceleration.
The reason i'm still liking the 0.1-way on the decel side is because I'm still going to autocross the car, and feel there could be conditions where it's useful, possibly in slaloms and other quick transitions. I did read that the OSG is very mild on top of that, due to the negative preload springs, so this is going to feel open for the most part anyway
Oct 12, 2018, 08:29 AM
#52
EvoM Guru
iTrader: (1)
I have a hard time believing you'll even feel the .1 lock up on decel. But, in for results... 
Oct 12, 2018, 08:42 AM
#53
i don't think so either, especially with the negative preload springs. however, customized osgs cost the same regardless of what you want in them. Are you recommending a straight 1-way, or just saying it likely won't matter either way. I think the latter, that it won't really matter, but why not? I'm trying to hear back from OSG on what exact ramp angle constitutes their 0.1way on decel - if it's something like 85deg (90deg being a pure 1-way) then likely no difference. If it's like 75 degrees, I'll probably stick with a pure 1-way. I believe stock ramp angles for acceleration are typically 45 degrees, and 30 degrees are considered aggressive, so I'd also like to see how they set up in aggression for the ramp angles as well.
Oct 12, 2018, 10:55 AM
#54
maybe @heel2toe will sell you his and buy my cusco!
Last edited by kaj; Oct 12, 2018 at 11:00 AM.
Oct 13, 2018, 05:12 PM
#56
Spence @ Weir says my problem is that I'm lifting the inside rear and the diff won't work that way.
I've always lifted a tire but never had this problem before.
He says 11k is to stiff for the rear and I should try moving the 11k to the front and 10k to rear.
I then looked and turns out I have 9kF and 10kR (I guess I didn't change them ,after all). Beside the point though, I just wanted to share what they told me.
Oct 13, 2018, 06:45 PM
#57
EvoM Guru
iTrader: (1)
Well, you're not being given good info Lol
Oct 13, 2018, 07:46 PM
#58
Not even. I was going to go into detail how I can't get the rear to break loose even while rolling in a circle, in 1st gear. I was going to mention how the car was fine when I had the OEM diff plates rearranged. I was gonna... yeah... I don't think he was willing to hear it.
